package jdbclianxi20250325;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;

public class LoginDemo {
    public static void main(String[] args) {
        System.out.println("欢迎登录");
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入用户名");
        String username = scanner.nextLine();
        System.out.println("请输入密码:");
        String password = scanner.nextLine();

        try (Connection connection = DBUtil.getConnection()){
            Statement statement = connection.createStatement();
            String sql = "select id,username,password,nickname,age " +
                    "from user " +
                    "where username='"+username+"' and password ='"+password+"'";
            System.out.println(sql);
            ResultSet resultSet = statement.executeQuery(sql);

            if(resultSet.next()){
                System.out.println("登录成功!");
            }else{
                System.out.println("登录失败");
            }
        } catch (SQLException e) {
            throw new RuntimeException(e);
        }


    }
}
